Corrupted Multisite while it was working

hi all,

i got a multisite that has 3 site. All of sites are same theme and they were working without problem.

today i met interesting problem.

bond and lebron sites are working properly but the main site not working like them..All plugins are same, all css codes are same..just data divided between them.

i disabled some plugins, i delete the homepage and create the new one.all homepage templates are same there is one homepage template that they are using but one of them cant show it bond or lebron. i got an old ftp backup and i upload it but there is no change…

please help, cant find the solution,

my sites are;

https://www.ceyms.com/demo – damn not working
https://www.ceyms.com/demo/bond – working
https://www.ceyms.com/demo/lebron – working

thanks